Class SparqlRemoteEndpoint

A Class for connecting to a remote SPARQL Endpoint and executing Queries against it.

Inheritance

System.Object

BaseEndpoint

SparqlRemoteEndpoint

FederatedSparqlRemoteEndpoint

Implements

IConfigurationSerializable

Inherited Members

BaseEndpoint.Uri

BaseEndpoint.Credentials

BaseEndpoint.UserAgent

BaseEndpoint.HttpMode

BaseEndpoint.Timeout

BaseEndpoint.SetCredentials(String, String)

BaseEndpoint.SetCredentials(String, String, String)

BaseEndpoint.ClearCredentials()

BaseEndpoint.UseCredentialsForProxy

BaseEndpoint.SetProxy(String)

BaseEndpoint.SetProxy(Uri)

BaseEndpoint.Proxy

BaseEndpoint.ClearProxy()

BaseEndpoint.SetProxyCredentials(String, String)

BaseEndpoint.SetProxyCredentials(String, String, String)

BaseEndpoint.ProxyCredentials

BaseEndpoint.ClearProxyCredentials()

BaseEndpoint.ApplyRequestOptions(HttpWebRequest)

BaseEndpoint.ApplyCustomRequestOptions(HttpWebRequest)

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: VDS.RDF.Query

Assembly: dotNetRDF.dll

Syntax

public class SparqlRemoteEndpoint : BaseEndpoint, IConfigurationSerializable

Constructors

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SparqlRemoteEndpoint()

Empty Constructor for use by derived classes.

Declaration

protected SparqlRemoteEndpoint()

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SparqlRemoteEndpoint(Uri)

Creates a new SPARQL Endpoint for the given Endpoint URI.

Declaration

public SparqlRemoteEndpoint(Uri endpointUri)

Parameters

Type	Name	Description
System.Uri	endpointUri	Remote Endpoint URI.

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SparqlRemoteEndpoint(Uri, IEnumerable<String>)

Creates a new SPARQL Endpoint for the given Endpoint URI using the given Default Graph URI.

Declaration

public SparqlRemoteEndpoint(Uri endpointUri, IEnumerable<string> defaultGraphUris)

Parameters

Type	Name	Description
System.Uri	endpointUri	Remote Endpoint URI.
System.Collections.Generic.IEnumerable<System.String>	defaultGraphUris	Default Graph URIs to use when Querying the Endpoint.

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SparqlRemoteEndpoint(Uri, IEnumerable<String>, IEnumerable<String>)

Creates a new SPARQL Endpoint for the given Endpoint URI using the given Default Graph URI.

Declaration

public SparqlRemoteEndpoint(Uri endpointUri, IEnumerable<string> defaultGraphUris, IEnumerable<string> namedGraphUris)

Parameters

Type	Name	Description
System.Uri	endpointUri	Remote Endpoint URI.
System.Collections.Generic.IEnumerable<System.String>	defaultGraphUris	Default Graph URIs to use when Querying the Endpoint.
System.Collections.Generic.IEnumerable<System.String>	namedGraphUris	Named Graph URIs to use when Querying the Endpoint.

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SparqlRemoteEndpoint(Uri, IEnumerable<String>, IEnumerable<Uri>)

Creates a new SPARQL Endpoint for the given Endpoint URI using the given Default Graph URI.

Declaration

public SparqlRemoteEndpoint(Uri endpointUri, IEnumerable<string> defaultGraphUris, IEnumerable<Uri> namedGraphUris)

Parameters

Type	Name	Description
System.Uri	endpointUri	Remote Endpoint URI.
System.Collections.Generic.IEnumerable<System.String>	defaultGraphUris	Default Graph URIs to use when Querying the Endpoint.
System.Collections.Generic.IEnumerable<System.Uri>	namedGraphUris	Named Graph URIs to use when Querying the Endpoint.

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SparqlRemoteEndpoint(Uri, IEnumerable<Uri>)

Creates a new SPARQL Endpoint for the given Endpoint URI using the given Default Graph URI.

Declaration

public SparqlRemoteEndpoint(Uri endpointUri, IEnumerable<Uri> defaultGraphUris)

Parameters

Type	Name	Description
System.Uri	endpointUri	Remote Endpoint URI.
System.Collections.Generic.IEnumerable<System.Uri>	defaultGraphUris	Default Graph URIs to use when Querying the Endpoint.

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SparqlRemoteEndpoint(Uri, IEnumerable<Uri>, IEnumerable<String>)

Creates a new SPARQL Endpoint for the given Endpoint URI using the given Default Graph URI.

Declaration

public SparqlRemoteEndpoint(Uri endpointUri, IEnumerable<Uri> defaultGraphUris, IEnumerable<string> namedGraphUris)

Parameters

Type	Name	Description
System.Uri	endpointUri	Remote Endpoint URI.
System.Collections.Generic.IEnumerable<System.Uri>	defaultGraphUris	Default Graph URIs to use when Querying the Endpoint.
System.Collections.Generic.IEnumerable<System.String>	namedGraphUris	Named Graph URIs to use when Querying the Endpoint.

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SparqlRemoteEndpoint(Uri, IEnumerable<Uri>, IEnumerable<Uri>)

Creates a new SPARQL Endpoint for the given Endpoint URI using the given Default Graph URI.

Declaration

public SparqlRemoteEndpoint(Uri endpointUri, IEnumerable<Uri> defaultGraphUris, IEnumerable<Uri> namedGraphUris)

Parameters

Type	Name	Description
System.Uri	endpointUri	Remote Endpoint URI.
System.Collections.Generic.IEnumerable<System.Uri>	defaultGraphUris	Default Graph URIs to use when Querying the Endpoint.
System.Collections.Generic.IEnumerable<System.Uri>	namedGraphUris	Named Graph URIs to use when Querying the Endpoint.

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SparqlRemoteEndpoint(Uri, String)

Creates a new SPARQL Endpoint for the given Endpoint URI using the given Default Graph Uri.

Declaration

public SparqlRemoteEndpoint(Uri endpointUri, string defaultGraphUri)

Parameters

Type	Name	Description
System.Uri	endpointUri	Remote Endpoint URI.
System.String	defaultGraphUri	Default Graph URI to use when Querying the Endpoint.

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SparqlRemoteEndpoint(Uri, String, IEnumerable<String>)

Creates a new SPARQL Endpoint for the given Endpoint URI using the given Default Graph URI.

Declaration

public SparqlRemoteEndpoint(Uri endpointUri, string defaultGraphUri, IEnumerable<string> namedGraphUris)

Parameters

Type	Name	Description
System.Uri	endpointUri	Remote Endpoint URI.
System.String	defaultGraphUri	Default Graph URI to use when Querying the Endpoint.
System.Collections.Generic.IEnumerable<System.String>	namedGraphUris	Named Graph URIs to use when Querying the Endpoint.

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SparqlRemoteEndpoint(Uri, Uri)

Creates a new SPARQL Endpoint for the given Endpoint Uri using the given Default Graph Uri.

Declaration

public SparqlRemoteEndpoint(Uri endpointUri, Uri defaultGraphUri)

Parameters

Type	Name	Description
System.Uri	endpointUri	Remote Endpoint URI.
System.Uri	defaultGraphUri	Default Graph URI to use when Querying the Endpoint.

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SparqlRemoteEndpoint(Uri, Uri, IEnumerable<String>)

Creates a new SPARQL Endpoint for the given Endpoint URI using the given Default Graph URI.

Declaration

public SparqlRemoteEndpoint(Uri endpointUri, Uri defaultGraphUri, IEnumerable<string> namedGraphUris)

Parameters

Type	Name	Description
System.Uri	endpointUri	Remote Endpoint URI.
System.Uri	defaultGraphUri	Default Graph URI to use when Querying the Endpoint.
System.Collections.Generic.IEnumerable<System.String>	namedGraphUris	Named Graph URIs to use when Querying the Endpoint.

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SparqlRemoteEndpoint(Uri, Uri, IEnumerable<Uri>)

Creates a new SPARQL Endpoint for the given Endpoint URI using the given Default Graph URI.

Declaration

public SparqlRemoteEndpoint(Uri endpointUri, Uri defaultGraphUri, IEnumerable<Uri> namedGraphUris)

Parameters

Type	Name	Description
System.Uri	endpointUri	Remote Endpoint URI.
System.Uri	defaultGraphUri	Default Graph URI to use when Querying the Endpoint.
System.Collections.Generic.IEnumerable<System.Uri>	namedGraphUris	Named Graph URIs to use when Querying the Endpoint.

Properties

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DefaultGraphs

Gets the Default Graph URIs for Queries made to the SPARQL Endpoint.

Declaration

public List<string> DefaultGraphs { get; }

Property Value

Type	Description
System.Collections.Generic.List<System.String>

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NamedGraphs

Gets the List of Named Graphs used in requests.

Declaration

public List<string> NamedGraphs { get; }

Property Value

Type	Description
System.Collections.Generic.List<System.String>

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RdfAcceptHeader

Gets/Sets the Accept Header sent with CONSTRUCT/DESCRIBE queries.

Declaration

public string RdfAcceptHeader { get; set; }

Property Value

Type	Description
System.String

Remarks

Can be used to workaround buggy endpoints which don't like the broad Accept Header that dotNetRDF sends by default. If not set or explicitly set to null the library uses the default header generated by HttpAcceptHeader.

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ResultsAcceptHeader

Gets/Sets the Accept Header sent with ASK/SELECT queries.

Declaration

public string ResultsAcceptHeader { get; set; }

Property Value

Type	Description
System.String

Remarks

Methods

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QueryRaw(String)

Makes a Query to a SPARQL Endpoint and returns the raw Response.

Declaration

public virtual HttpWebResponse QueryRaw(string sparqlQuery)

Parameters

Type	Name	Description
System.String	sparqlQuery	SPARQL Query String.

Returns

Type	Description
System.Net.HttpWebResponse

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QueryRaw(String, String[])

Makes a Query to a SPARQL Endpoint and returns the raw Response.

Declaration

public virtual HttpWebResponse QueryRaw(string sparqlQuery, string[] mimeTypes)

Parameters

Type	Name	Description
System.String	sparqlQuery	SPARQL Query String.
System.String[]	mimeTypes	MIME Types to use for the Accept Header.

Returns

Type	Description
System.Net.HttpWebResponse

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QueryWithResultGraph(String)

Makes a Query where the expected Result is an RDF Graph ie. CONSTRUCT and DESCRIBE Queries.

Declaration

public virtual IGraph QueryWithResultGraph(string sparqlQuery)

Parameters

Type	Name	Description
System.String	sparqlQuery	SPARQL Query String.

Returns

Type	Description
IGraph	RDF Graph.

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QueryWithResultGraph(String, GraphCallback, Object)

Makes a Query asynchronously where the expected Result is an RDF Graph ie. CONSTRUCT and DESCRIBE Queries.

Declaration

public void QueryWithResultGraph(string query, GraphCallback callback, object state)

Parameters

Type	Name	Description
System.String	query	SPARQL Query String.
GraphCallback	callback	Callback to invoke when the query completes.
System.Object	state	State to pass to the callback.

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QueryWithResultGraph(IRdfHandler, String)

Makes a Query where the expected Result is an RDF Graph ie. CONSTRUCT and DESCRIBE Queries.

Declaration

public virtual void QueryWithResultGraph(IRdfHandler handler, string sparqlQuery)

Parameters

Type	Name	Description
IRdfHandler	handler	RDF Handler.
System.String	sparqlQuery	SPARQL Query String.

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QueryWithResultGraph(IRdfHandler, String, QueryCallback, Object)

Makes a Query asynchronously where the expected Result is an RDF Graph ie. CONSTRUCT and DESCRIBE Queries.

Declaration

public void QueryWithResultGraph(IRdfHandler handler, string query, QueryCallback callback, object state)

Parameters

Type	Name	Description
IRdfHandler	handler	RDF Handler.
System.String	query	SPARQL Query String.
QueryCallback	callback	Callback to invoke when the query completes.
System.Object	state	State to pass to the callback.

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QueryWithResultSet(String)

Makes a Query where the expected Result is a SparqlResultSet i.e. SELECT and ASK Queries.

Declaration

public virtual SparqlResultSet QueryWithResultSet(string sparqlQuery)

Parameters

Type	Name	Description
System.String	sparqlQuery	SPARQL Query String.

Returns

Type	Description
SparqlResultSet	A SPARQL Result Set.

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QueryWithResultSet(String, SparqlResultsCallback, Object)

Makes a Query asynchronously where the expected Result is a SparqlResultSet i.e. SELECT and ASK Queries.

Declaration

public void QueryWithResultSet(string query, SparqlResultsCallback callback, object state)

Parameters

Type	Name	Description
System.String	query	SPARQL Query String.
SparqlResultsCallback	callback	Callback to invoke when the query completes.
System.Object	state	State to pass to the callback.

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QueryWithResultSet(ISparqlResultsHandler, String)

Makes a Query where the expected Result is a SparqlResultSet i.e. SELECT and ASK Queries.

Declaration

public virtual void QueryWithResultSet(ISparqlResultsHandler handler, string sparqlQuery)

Parameters

Type	Name	Description
ISparqlResultsHandler	handler	Results Handler.
System.String	sparqlQuery	SPARQL Query String.

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QueryWithResultSet(ISparqlResultsHandler, String, QueryCallback, Object)

Makes a Query asynchronously where the expected Result is a SparqlResultSet i.e. SELECT and ASK Queries.

Declaration

public void QueryWithResultSet(ISparqlResultsHandler handler, string query, QueryCallback callback, object state)

Parameters

Type	Name	Description
ISparqlResultsHandler	handler	Results Handler.
System.String	query	SPARQL Query String.
QueryCallback	callback	Callback to invoke when the query completes.
System.Object	state	State to pass to the callback.

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SerializeConfiguration(ConfigurationSerializationContext)

Serializes the Endpoint's Configuration.

Declaration

public override void SerializeConfiguration(ConfigurationSerializationContext context)

Parameters

Type	Name	Description
ConfigurationSerializationContext	context	Configuration Serialization Context.